diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2006-04-03 17:56:36 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2006-04-19 04:14:21 +0200 |
| commit | e4ac58afdfac792c0583af30dbd9eae53e24c78b (patch) | |
| tree | 7517bef2c515fc630e4d3d238867b91cde96f558 /arch/mips/gt64120/ev64120/irq.c | |
| parent | d35d473c25d43d7db3e5e18b66d558d2a631cca8 (diff) | |
[MIPS] Rewrite all the assembler interrupt handlers to C.
Saves like 1,600 lines of code, is way easier to debug, compilers
frequently do a better job than the cut and paste type of handlers many
boards had. And finally having all the stuff done in a single place
also means alot of bug potencial for the MT ASE is gone.
The only surviving handler in assembler is the DECstation one; I hope
Maciej will rewrite it.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/gt64120/ev64120/irq.c')
| -rw-r--r-- | arch/mips/gt64120/ev64120/irq.c | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/arch/mips/gt64120/ev64120/irq.c b/arch/mips/gt64120/ev64120/irq.c index 3b186159b21a..46c468b26b30 100644 --- a/arch/mips/gt64120/ev64120/irq.c +++ b/arch/mips/gt64120/ev64120/irq.c @@ -46,14 +46,22 @@ #include <asm/system.h> #include <asm/gt64120.h> -asmlinkage inline void pci_intA(struct pt_regs *regs) +asmlinkage void plat_irq_dispatch(struct pt_regs *regs) { - do_IRQ(GT_INTA, regs); -} - -asmlinkage inline void pci_intD(struct pt_regs *regs) -{ - do_IRQ(GT_INTD, regs); + unsigned int pending = read_c0_status() & read_c0_cause(); + + if (pending & STATUSF_IP4) /* int2 hardware line (timer) */ + do_IRQ(4, regs); + else if (pending & STATUSF_IP2) /* int0 hardware line */ + do_IRQ(GT_INTA, regs); + else if (pending & STATUSF_IP5) /* int3 hardware line */ + do_IRQ(GT_INTD, regs); + else if (pending & STATUSF_IP6) /* int4 hardware line */ + do_IRQ(6, regs); + else if (pending & STATUSF_IP7) /* compare int */ + do_IRQ(7, regs); + else + spurious_interrupt(regs); } static void disable_ev64120_irq(unsigned int irq_nr) @@ -109,16 +117,11 @@ static struct hw_interrupt_type ev64120_irq_type = { void gt64120_irq_setup(void) { - extern asmlinkage void galileo_handle_int(void); - /* * Clear all of the interrupts while we change the able around a bit. */ clear_c0_status(ST0_IM); - /* Sets the exception_handler array. */ - set_except_vector(0, galileo_handle_int); - local_irq_disable(); /* |